Finish migration to the new events setup

This finishes the procedure for migrating events from the old format
into the new format. Code no longer uses the old setup and the database
tables used during the migration process are swapped, with the old table
being dropped.

While the database migration can be reversed this will 1) take a lot of
time as data has to be coped around 2) won't restore data in the
"events.data" column as we have no way of restoring this.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/37241

1 files changed, 16 insertions, 61 deletions

diff --git a/app/models/push_event.rb b/app/models/push_event.rb
index 3f1ff979de6..23ffb0d4ea8 100644
--- a/app/models/push_event.rb
+++ b/app/models/push_event.rb
@@ -15,15 +15,21 @@ class PushEvent < Event
   # should ensure the ID points to a valid project.
   validates :project_id, presence: true
 
-  # The "data" field must not be set for push events since it's not used and a
-  # waste of space.
-  validates :data, absence: true
-
   # These fields are also not used for push events, thus storing them would be a
   # waste.
   validates :target_id, absence: true
   validates :target_type, absence: true
 
+  delegate :branch?, to: :push_event_payload
+  delegate :tag?, to: :push_event_payload
+  delegate :commit_from, to: :push_event_payload
+  delegate :commit_to, to: :push_event_payload
+  delegate :ref_type, to: :push_event_payload
+  delegate :commit_title, to: :push_event_payload
+
+  delegate :commit_count, to: :push_event_payload
+  alias_method :commits_count, :commit_count
+
   def self.sti_name
     PUSHED
   end
@@ -36,86 +42,35 @@ class PushEvent < Event
     !!(commit_from && commit_to)
   end
 
-  def tag?
-    return super unless push_event_payload
-
-    push_event_payload.tag?
-  end
-
-  def branch?
-    return super unless push_event_payload
-
-    push_event_payload.branch?
-  end
-
   def valid_push?
-    return super unless push_event_payload
-
     push_event_payload.ref.present?
   end
 
   def new_ref?
-    return super unless push_event_payload
-
     push_event_payload.created?
   end
 
   def rm_ref?
-    return super unless push_event_payload
-
     push_event_payload.removed?
   end
 
-  def commit_from
-    return super unless push_event_payload
-
-    push_event_payload.commit_from
-  end
-
-  def commit_to
-    return super unless push_event_payload
-
-    push_event_payload.commit_to
+  def md_ref?
+    !(rm_ref? || new_ref?)
   end
 
   def ref_name
-    return super unless push_event_payload
-
     push_event_payload.ref
   end
 
-  def ref_type
-    return super unless push_event_payload
-
-    push_event_payload.ref_type
-  end
-
-  def branch_name
-    return super unless push_event_payload
-
-    ref_name
-  end
-
-  def tag_name
-    return super unless push_event_payload
-
-    ref_name
-  end
-
-  def commit_title
-    return super unless push_event_payload
-
-    push_event_payload.commit_title
-  end
+  alias_method :branch_name, :ref_name
+  alias_method :tag_name, :ref_name
 
   def commit_id
     commit_to || commit_from
   end
 
-  def commits_count
-    return super unless push_event_payload
-
-    push_event_payload.commit_count
+  def last_push_to_non_root?
+    branch? && project.default_branch != branch_name
   end
 
   def validate_push_action